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Diagnosis and management of 5-fluorouracil
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Diagnosis and management of 5-fluorouracil
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Journal Article
Diagnosis and management of 5-fluorouracil
2022
Overview
The administration of 5-fluorouracil (5FU) in the treatment of gastrointestinal (GI) malignancies is associated with common side effects such as mucositis, diarrhoea, and myelosuppression, which are easily managed with supportive measures and dose adjustments. Cardiotoxicity and neurotoxicity are rare but reversible side effects of 5-FU and are treated with withdrawal of the drug and conservative measures. The presenting symptoms of 5-FU-induced leukoencephalopathy are often confusing and pose a diagnostic dilemma in routine clinical practice. We report a series of five patients with GI malignancies who developed 5-FU-induced leukoencephalopathy. All (n = 5) had Naranjo scores of 6-7, predictive of 5-FU-related adverse effects, with clinical and radiological findings suggestive of 5-FU-induced encephalopathy as described in prior literature. The median time to onset of symptoms from initiation of 5FU was 3 days (range: 2-4 days). All patients improved after conservative management with complete neurological recovery. Prompt recognition of this rare yet severe adverse effect of 5-FU-based chemotherapy aids early withdrawal of the offending agent (5-FU) and timely initiation of supportive measures and helps plan alternative oncological interventions.
Publisher
Springer
Subject
